Dump scoop attachment for tractors



April 23, 1946. F. 51 ARPs' 2, DUMP SCOOP .ATTACHMENT FOR TRAOTOR$ FiledSept. 13, 1944 5 Sheets-Sheet 1 INVENTOR. FEEDER/CK B. ARPs' BY v if:

. ATTORNEY April 23, 1946. E; A PS 2,39 ,991

DUMP SCOOP ATTACHMENT FOR TRACTORS Filed Sept. 18,. 1944 s Sheets-Sheet2 I INVENTOR. FREDERICK B RPS as/x45 ATr oRNEY April 23;;1946. 5, aps I2,398,991

' DUMP scooP ATTACHMENT FOR TRACTORS v Filed Sep'E. 18, 1944 sSheets-Sheet s ATTORNY Patented Apr. 23, 1946 ram/ins U shaped yoke, tothe lower ends Frederick Ba Arps, New Holstein, Wia, assiznor to ArpsCorporation, New Holstein, Wis, a corporation of WisconsinApplication'September 1a, 1944', Serial No. 554,651 Claims. (on. 87-126)Thepresent invention relates to a dump scoop attachment for tractors,the tractor having preferably a hydraulic lift with which toraise' andlower the scoop.

The principal objects of the present invention are to provide a scoopwhich can be quickly attached and detached to the tractor, which isslmple and easy to operate, durable and can b manufactured at low cost.

An object of my-invention is to provide a scoop wherein the front end orcutting edge of the scoop is first lifted so as to break loose the soilor sod before the major weight of the scoop is lifted, and wherein thescoop is tilted back suillciently to prevent any of the material fromfalling forward and out of the scoop while being lifted and transported.

Another object of the present-invention is to provide a toggle joint formaintaining the loading and lifting positions of the scoop which may bebroken manually for dumping the scoop.

fA further object of the present invention is ,to provide proper timg'automatically return to its loading position and will be automaticallylocked inthis siosition until the beginning of the lifting opera-Another object of the present invention is to provide a spring whichwill act as a cushion against extreme thrusts when the scoop is beinloaded. A

Tojthese and other useful ends-my invention consists of parts,combinations of parts or their equiv lents and mode of operation ashereinafter descr d and claimed and shown in the accomdrawings inwhich:I

Fig. Us a side elevational view of my improved scoop in to aconventional tractor,

Fig. 2 is'a view similar to Figure 1 exceptshowing the scoop in adumping position. a

' Fig. 3 is a top view of the device as illustrated in Figure l.

Fig. 4 is a fractional rear view of the inverted of'which the scoonispivoted.

extend to the difierential in the housing of the tractor through housingi3 has 9. depending bracket It to which draw-bars strengthening plate I!is secured to the side walls lit-I8 or scoop B. The scoop is providedwith a suitable cutting edge I3 at its forward end and a bracket on itsrear end N. Member 20 at its upper end extends slightly rearwardly and adistance above member 2! as illustrated in Figures 1 cured to membersmeans whereby the-scoop will, at the A supplemental draw-bar arrangementis provided in the form of an inverted U shaped member. or yokeconsisting of end members or arms -45, the upper ends being connected bymeans of a tube 25, the ends of which tube are preferably weldedto theupper ends of members 25 The lower ends'of members 25 are pivotallyse- Has. at 2? and the rear ends of draw-bars H are pivotally secured tomembers 25 as at28.

Pivot .28 is positioned about as shown in the figures and slightlyaboveforwardly extending projection 29 (see Figure 2) These projectionseach have outwardlyextending pins 30 which lie in the path of member I5so as to limit the movement of members 25 relative to members l5 whenthe scoopislifted. Y

'- ber 25 is limited in On the upper end of members 25, I provideoutwardly extending members 3! which lie in the path of draw-bar it whenthe scoop is in a loading position as illustrated'in Fig. 1. Thus memitsmovement on pivot 21 in both directions, the objects of whichwillher'einafter'a'ppear.

s Tractor A is provided withafhydraulic power I lift which is preferablymounted within housin position for loading and shownattached I .afraction only of-th tractor-being showm:

Fig. 5 illustrates a modification of the tipping.

devica- As thus of the tractor is designated by ref- Ill, having rearcarrying wheels to axle members l2 which illustrated the tractor isdesignated by reference character A and the scoop by reference characterB. j The frame erence numeral -ll- -l lT-bQiBELSGClD-Qd I ableconnections I0, having a shaft which protrudes through the housingextensions 4lfll. I mount levers 42-42 onthe ends of shaft 40 andformnsuitbetween the free ends of lever 42 and draw-bars l5 by means oflinks be used bars.

I'provide an prising end members inverted U shaped member com-5ll'-50,,the upper ends of which are secured togetherby means of a tube5|. Members are at their lower ends pivoted to members 18 as atj2-52.'On the upper side of member. 5|, I'm cunt a bracket 53; I pivotallymountabell-crank 54 on the engine housing l0 as-aLS SIQ Ihe other end ofthe bell-crank is pivoted to a link '56 as at 51. The rear end of niembe5g is pivoted to member 53 as at 58.

axle housings l3-l3. Each i5 are pivotally mounted as at It. A

43-43 as' at 44 and 451 Thus the powerliftma' for raising and loweringthe rear ends of draw A pair of links 48-48 lie on opposite sides otmember 46 and are pivoted to this member as at 83. Links 48 also lie onthe opposite sides of the,

upper end of member 20 and are pivoted thereto as at 64. A bolt 85extends through members 48. The rear end of member 46 is cut away as at66 (see Figure 2), forming a projection 81 which lies on member 65 whenthe scoop is in its loading and lifting positions. It will be noted thatmember 63 is slightly below the plane of members 41 and 64. Thus thedistance between 4! and 64 is fixed unless member 65 is raised. This isdone when it is desired to tip the scoop for unloading.

I secure a lever Ill to member 46 which is pivotally secured at its topto rod H as at 12. This rod extends forwardly and has a hand grip loop13 at its front end. Rod ll extends loosely through a loop 14, this loophaving a rearwardly extending arm 15 which is secured to member 53 as at16.

It will be noted that there are two holes in the rear of member 53. Thisnumber of holes may be increased. They are used for changing the downsuck of the scoop when loading. Itwill also be noted that the scoop willbe yieldingly held in one direction by spring 82 so that the cuttingedge l9 may yield slightly when contacting very hard surfaces.

In Figure 5 I illustrate a modification of the scoop holding andtripping device. In this device a single link 88 takes the place ofmembers 46 and 48 and the means for tripping the same. A block 8| isslidably mounted on member 88 and pivotally connected to member 20 as inthe other design. Near the rear end of member 801 provide a pin 82 whichlimits the rearward movement of block 8|. A bell crank 83 is pivoted tomember 8| as at 84, the upper end having a rope 85 which extends towithin reach of the tractor operator. Bell crank 83 at its other end isprovided with a book 86 adapted to engage the end of member 80 when thescoop is being loaded and lifted for transportation. A spring 81 isprovided and anchored to members BI and 83 as shown.

The operation of my device is as follows:

When scoop B is being loaded, members I 5 and 25 will be in the positionshown in Figure 1 and at this time they will act similar to a rigiddrawbar between pivots l8 and 21 and the scoop will be held in theposition shown because of spring 62. After loading, when it is desiredto lift the scoop by means of the hydraulic mechanism, the forward endof member 25 will first be raised, thus shortening the distance betweenmembers 16 and 21 until pin 30 contacts member I 5 (see Figure 2). Thiswill result in first raising the front end of the scoop and breaking thedirt or sod at the cutting edge of the scoop before the rear end of thescoop is lifted from the ground, thus tilting the scoop backwardsomewhat and preventingany of the dirt on the scoop from fallingforward. A further movement of the lift will raise the scoop withoutmaterially changing its horizontal position and the tractor may then bedriven to the unloading place.

When it is desired to unload, the operator may pull on-hand loop 18 thusunlocking the toggle Joint and permit the scoop to tilt to the positionshown in Figure 2. This unloading operation may take place with the.scoop at any desired height. If it is desired to spread the dirt, thenthe scoop is dumped when in a position so the front end will drag someof the dirt forward as the tractor is moved forward.

One of the advantages of applicants design is that it gives the operatormanual control over the scoop because the scoop may be dumped at willand at any place or in any position. Also, by pushing on loop 13 thescoop may be positively forced into its loading position. In fact, theoper- 15 ,ator has almost complete control over the scoop.

Furthermore the toggle joint will not wear, will always look whendesired and can be unlocked easily by a slight pull on hand loop 13.

The operation of the scoop when equipped with the tilting device shownin Figure 5 will obviously be the same as in the other figures exceptthat a pull rope is provided instead of the hand piece 13 and itsconnections to link 46.

Haivr'llng thus shown and described my invention, I cla 1. Incombination, a tractor having a pair of rearwardly extending draw-barspivotally atling the position tached thereto, means for raising andlowering the rear ends of the draw-bars, a scoop having side walls, aninverted U-shaped frame having its side legs straddling the scoop withthe lower ends of the legs pivoted to said side walls, a pivotalconnection between the rear ends of the draw-bars and said legs,abutment means on the legs of the U-shaped frame at opposite sides ofthe draw-bars but spaced therefrom and respectively engageable with thedraw-bars for holding the scoop in loading position and for arrestingpivotal movements between the draw-bars and side legs of the U-shapedframe when the scoop is elevated, and means extending between thetractor and the rear end of the scoop for controlof the scoop.

2. In combination, a tractor having a pair of rearwardly extendingdraw-bars pivotally attached thereto, means for raising and lowering therear endsof the draw-bars, a scoop having side walls, an arm at eachside of the scoop with the lower ends of the arms pivoted to said sidewalls, a pivotal connection between the rear ends of the draw-bars andsaid arms, abutment means on the arms at opposite sides of the draw-barsbut spaced therefrom and respectively engageable with the draw-bars forholding the scoop in loading position and for arresting pivotalmovements between the draw-bars and said arms when the scoop iselevated, and means extending between the tractor and the rear end ofthe scoop for controlling the position of the scoop.

3. In combination, a tractor having a pair of rearwardly extendingdraw-bars pivotally attached thereto, means for raising and lowering therear ends of the draw-bars, a scoop having side walls, supplementaldraw-bars having their rear ends pivoted to said side walls of thescoop,the first named draw-bars being pivoted at their rear ends to saidsupplemental draw-bars'intermediate the ends of the latter, abutmentmeans on said supplemental draw-bars on opposite sides of the firstnamed draw-bars but spaced therefrom and respectively engageabletherewith for holding the scoop in leading position and for an restingpivotal movement between the draw-bars when the scoop is elevated, andmeans extending between the tractor and the rear end of the scoop torcontrolling the position of the scoop.

4. In combination, a tractor having a pair of rearwardly extendingdraw-bars pivotally attached thereto, means for raising and lowering.

ments between the draw-bars and said arms when the scoop is elevated,and means extending between the tractor and the rear end of the scoopfor controlling the position or the scoop.

5. In combination, a tractor having a pair of rearwardly extendingdraw-bars pivotally attached thereto, means for raising and lowering therear ends of the draw-bars, a scoop having side walls, an arm at eachside of the scoop with v the lower ends of the arms pivoted to said sidewalls, a pivotal connection between the rear ends or the draw-bar andsaid arms, abutment means on the arms at opposite side of the draw-barsbut spaced therefrom and respectively emseable with the draw-bars forholding the scoop in loading position and. tor arresting pivotalmovements between the draw-bars and said arms when the scoop iselevated. and mean for controlling the position of the scoop includingan inverted U- shaped bracket having side legs straddling the scoop withthe legs pivoted to the side walls of the scoop, a link connectionbetween the upper ends of the U-shaped bracket and the tractor and linkconnections between the upper end of the U-shaped bracket and the rearend of the scoop. FREDERICK B. ARPB.

